for the moment the Bank is still standing upright, then how is the continuation of the bank if Crypto already stand alone and in the public know so that in use fully and all countries wear it. is there going to be a temporary panic in the financial world? .... and all the banks in every country collapse is that what will happen hopefully there is no market panic
The scenario that you pictured will not likely to happened in the future. Even though that crypto is slowly going mainstream and a lot of people want to be "its own bank'. Financial institution will stay whether we like it or not. Yeah, we must admit that crypto is a threatening disruptive technology that has challenged the way we look at banks, but it doesn't mean that it people will all go to crypto to store their wealth and money. And its a main component of the economy in the world. Banks is like a gauge, observe those wealthy nation and you will notice that their banking and financial system are very healthy as well.
Financial institutions are already in a huge position to remain relevant and nothing is apparently going to be changing that in the long run. I know most people may think that banks have duped us for so long, well, that is past, this is present and in the future, I do not expect the banks to close their eyes and get pushed out of the system, so as long as that is, they will always find ways to always remain relevant with or without cryptocurrencies.
Both will stand straight, bitcoin will be difficult to shift the bank to make itself as a legitimate currency is very difficult before there will be no permission from the bank because it is considered very risky in the future where the price is fast up and down, and other bitcoin better known as a digital asset where much of the potential it has bitcoin.
Both may survive but the question is which one is going to dominate. The definite answer in long run must be "cryptocurrencies" alone. Because banking system has its own pitfalls which may end their life in coming years when people come to the point of understanding those pitfalls.